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Head-to-head evidence comparison — which supplement is right for you?
Meso-Zeaxanthin wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
3 of 3 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
10 of 15 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Meso-Zeaxanthin and Potassium have evidence — compare verdict strength side-by-side.
10mg daily (often in combination with lutein and zeaxanthin)
With a fat-containing meal, Any time of day
Meso-zeaxanthin with lutein and zeaxanthin (MPOD formula)
99-500mg daily from supplements (food provides more)
With food to reduce GI upset, Spread throughout day, During/after exercise for athletes
Potassium Citrate or Potassium Gluconate
8-24 weeks
12-24 weeks
Ongoing
2-4 weeks
1-2 weeks
Long-term
With excess or kidney issues
Effect of Antioxidant Supplementation on Macular Pigment Optical Density and Visual Functions: Network Meta-Analysis
Advances in Nutrition (2024) · Meta analysis · n=3159
Network meta-analysis of RCTs
The Effect of Lutein/Zeaxanthin Intake on Human Macular Pigment Optical Density: A Systematic Review and Meta-Analysis
Advances in Nutrition (2021) · Meta analysis · n=3189
46 studies with 3189 participants analyzed
Carotenoids in the Management of Glaucoma: A Systematic Review of the Evidence
Nutrients (2021) · Systematic review
A comprehensive literature search was conducted in three databases (PubMed, Cochrane Library, and Web of Science) and 20 records were identified for screening.
Effect of changes in potassium intake on blood pressure: a dose–response meta-analysis of randomized clinical trials (2000–2024)
Clinical Kidney Journal (2025) · Meta analysis · n=2500
Dose-response analysis of RCTs from 2000-2024
Magnesium and Potassium Supplementation for Systolic Blood Pressure Reduction in the General Normotensive Population: A Systematic Review and Subgroup Meta-Analysis for Optimal Dosage and Treatment Length
Nutrients (2024) · Meta analysis
Both supplements demonstrated greater reductions in SBP for the general population at lower dosages and longer treatment durations.
Sex-specific associations between sodium and potassium intake and overall and cause-specific mortality: a large prospective U.S. cohort study, systematic review, and updated meta-analysis of cohort studies
BMC medicine (2024) · Meta analysis · n=237036
Meta-analysis examining Potassium efficacy
Based on meta-analysis of 46 studies with 3189 participants confirming dose-response relationship at 5-20mg/day. Effect measured as increase in macular pigment optical density. Conservative estimates given variable individual response rates.
AI-estimated from published studies. Interpret as directional guidance.
Meso-Zeaxanthin has a higher evidence score (5.5/10 vs 8.5/10) and wins in 2 of 3 categories.
No known interactions between Meso-Zeaxanthin and Potassium have been documented in our database. However, always consult a healthcare provider before combining supplements.